Estimate of Energy Characteristics of Electromagnetic Vibration Exciter

A correlation is found between the pressure pulse amplitude of the power unit of a vibration exciter and the impact energy of the driving piston of an electromagnetic percussion drive as a component of the exciter. The correlation is used to investigate energy characteristics of the electromagnetic drive. It is shown that the energy contributed by the flyback coil to the total mechanical work done by the electromagnetic drive in one cycle is 70–75%, while the energy contributed by the forward run coil is 25–30%.